1387631150 has 24 divisors (see below), whose sum is σ = 2669996520. Its totient is φ = 535912160.

The previous prime is 1387631143. The next prime is 1387631159. The reversal of 1387631150 is 511367831.

It is a self number, because there is not a number n which added to its sum of digits gives 1387631150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387631159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 477044 + ... + 479943.

It is an arithmetic number, because the mean of its divisors is an integer number (111249855).

Almost surely, 2^1387631150 is an apocalyptic number.

1387631150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1387631150 is a deficient number, since it is larger than the sum of its proper divisors (1282365370).

1387631150 is a wasteful number, since it uses less digits than its factorization.

1387631150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957028 (or 957023 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1387631150 is about 37250.9214651128. The cubic root of 1387631150 is about 1115.3846930150.

Adding to 1387631150 its reverse (511367831), we get a palindrome (1898998981).

The spelling of 1387631150 in words is "one billion, three hundred eighty-seven million, six hundred thirty-one thousand, one hundred fifty".